Class: BoundingVolume

Members

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<static> EXPANSE_EMPTY

Indicates the bounds are empty

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<static> EXPANSE_FINITE

Indicates the bounds have a real size and position

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<static> EXPANSE_INFINITE

Indicates the bounds are infinitely large

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<static> EXPANSE_INHERIT

Indicates the parent's bounds are used in selecting.

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center

The center coordinate of the bounds

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expanse

Describes the size of the bounding box. BoundingVolume#EXPANSE_EMPTY, BoundingVolume#EXPANSE_FINITE, or BoundingVolume#EXPANSE_INFINITE

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halfExtent

The half extents of the bounds. These are the half-dimensions of the box encompassing the bounds from the center.

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maximum

The maximum reach of the bounds, described as a box range.

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minimum

The minimum reach of the bounds, described as a box range.

Methods

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classifyAgainstPlane(plane)

Tests on which side of the plane the bounding box is (front, back or intersecting).

Parameters:

Name	Type	Description
plane		The plane to test against.

Returns:

The side of the plane

Type

PlaneSide

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clear(expanseState)

Clear the bounds.

Parameters:

Name	Type	Description
expanseState		The state to reset to. Either BoundingVolume#EXPANSE_EMPTY or BoundingVolume#EXPANSE_INFINITE.

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getRadius()

The radius of the sphere encompassing the bounds. This is implementation-dependent, because the radius is less precise for a box than for a sphere

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intersectsBound()

Tests whether the bounds intersect another bounding volume

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intersectsConvexSolid(cullPlanes, numPlanes)

Tests whether the bounds intersects a given convex solid. The convex solid is described as a list of planes pointing outward. Infinite solids are also allowed (Directional Light frusta without a near plane, for example)

Parameters:

Name	Type	Description
cullPlanes		An Array of planes to be tested. Planes are simply Float4 objects.
numPlanes		The amount of planes to be tested against. This so we can test less planes than are in the cullPlanes array (Directional Light frusta, for example)

Returns:

Whether or not the bounds intersect the solid.

Type

boolean

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intersectsRay()

Tests whether or not this BoundingVolume intersects a ray.

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transformFrom(sourceBound, matrix)

Transforms a bounding volume and stores it in this one.

Parameters:

Name	Type	Description
sourceBound	BoundingVolume	The bounds to transform.
matrix	Matrix4x4	The matrix containing the transformation.